366 Mr. Hugh Scott on certain Nyderihiidas, 



convex outer surfaces, inner surfaces somewhat concave, and apices 

 rounded enclosing a median portion (Fig .\\d) only about \ as long 

 as the lateral parts ; the latter have a few short bristles on their 

 outer surfaces, longer strong bristles apically ; the median part has 



2 rather long fine bristles on its hind margin. 



Basal dernite as in the (^ . — [Owing to softness and shrinkage it 

 is impossible to estimate correctly the relative lengtlis of sternites 2, 



3 and 4.] Sternites 2, 3 soft, short, with long bristles not close on 

 the hind margins, and very short fine bristles on the posterior part 

 of their surfaces. Sternite 4 with long bristles on its hind margin, 

 and a few short ones on its surface. Stcmite 5 is a long chitinous 

 plate (Fig. 12a) appearing as if compcsed of two segments fused ; at 

 about \ the length from its base is a transverse row of long and 

 short bristles (marking the limit of one component sternite), and its 

 hind margin also bears long and short bristles ; rest of its surface 

 bare. Anal segment ventrally appearing rather long and mirrow, 

 markedly emarginate in the middle of its hind border, with rounded 

 corners, a median longitudinal impression, and a few bristles distally. 



The curiously formed ^ anal segment of iV. insolita 

 somewhat resembles that of N. llasii, Kolenati, and of 

 JY. jiedicnlari((, Latr. ( = N. hdrciJlci, Leach), in both of 

 whicli the segment has produced lateral plates. N. insolita 

 is distinguished by its smaller size, and by the thorax 

 ventrally being longer than broad ; the possession of the 

 long chitinous ventral plate (sternite 5) also is characteristic. 

 The $ also resembles N. hhisii somewhat in having a long 

 anal segment, but differs in the form of the thorax, etc. 



Nycterihia {Lisiropodia) saideri, sp. nov. 



I'allide flavescens ; thorace eubtus perpanun latiore quam longo ; 

 femoribus tibiisque parum latis. 



^ segmentum anale supra brevissimum, sublus longius, apice 

 lato. 



$ segmentum dorsale 2 curtum, hcve, superficie sine capillis : 

 eegmenta ventralia 3 et 4 utrumque laminis duabus perparum 

 elevatis : segmentum anale UMjue longum ac in basi latum, postice 

 angustatum, subtus utrincpie tuberculis duobus obtusis parum 

 elevatis. 



Long, Corp. circ^ 1"25 mm. 



1 $ and 1 $ sent from Tainan, Formosa (H. Sauter) ; 

 found on a single individual of Miniopterns scJireibcrdi 

 Type ^ in the Cambridge Museum. The % was unfor- 



